Has anyone tried using the 40 meter MFJ 10 watt radio as a mobile unit. I'm mostly concerned about noise from car computer. I know 10 watts is not much but I thought I could listen to the nets on 40 while driving. ThANKS FOR YOUR INPUT.

This is more about the antenna and installation than the rig. You would need to mitigate the noise no matter what radio you chose to use. In my experience an effective noise reduction feature in a high noise environment does reduce the audible noise but also reduces effective sensitivity. That makes the system less effective on receive overall.

You might get lucky and a hamstick on a mag mount with the rig jacked into the cigarette lighter works to all your expectations. You could start there but be prepared to do the "due diligence" with regards to an efficient and problem free installation if it doesn't work as you hoped. That means bonding panels, driveline, exhaust, well placed and grounded antenna mounts, good antenna, proper power connections and so on.

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